Superheater.



. UNITED STATES PAfrs-NT OFFICE.

MAX 'roi/rz, oF's'r. PAUL, MiNNEsoTA, AssIoNoR or ONE-FOURTH To CHARLES GILBERT i HAWLEY, or lCHICAGO, ILLINOIS. 1

SUPERHE ATER.

No. scopes.

Specification of Letters Patent.

Patented Oct. 29, 1907.

vTo all whom 'it may concern:

Beit known that I, MAX Torzrz, a citizen of the United States, and a resident of St. Paul, county of Ramsey, and State of Minnesota, have invented a certain new, useful, and Improved Superheater, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same. l

My invention relates to improvements in steam superheaters, and has particular reference to improvements in locomotive steam superheaters of the class wherein a large number'of superheating elements or loops are arranged in the lues of the locomotive boiler', and are connected with headers which are located in the front end, or smoke box of the boiler.

header of such a superheater is connected with the dry pipe of the boiler and the superheated steam header is connected to the steam chests of the locomotive engines. The steam flowing irom the dry pipe o the boiler, is distributed to the superhoater elements by the saturate steam header. iand being superheated in the elements,' is collected in the superheated steam leave substantially all of the boiler fiues exposed and invention.

open for inspection and cleaning. v

A furtheliebject of the invention is to provide a steam superheateoi thecias mentioned which shall oppose a minimunrof obstruction to the Low of gases from the boiler lue's to the smoke stackl and a further object of the'invention is`to provide a superhat'er Whichwill possess ,the advantage of presenting the maximum number' b superheater elements Within a minimum :pace or area, .measured upon the flue sheet oi the boiler.

Still other objects of my i nvention will appear hereinalter. My invention consists generally in a steam s uperheater for locomotive boilers, of the .construction and combinatiouo partshereinater described, and particularly pointed out in the claims.

The invention will be more readily understood by reference to the accompanying drawings forming a part of this specification, and in which Figure l, is a front end elevation of a locomotiv boiler equipped with a superheater embodying my Fig. 2, is a vertical section thereof, substantially on the line X, X, of Fig. l. Fig. .3, is a partial plan view andpartial horizontal section on the The saturate steam right angled line, Y, Y, of Fig. l, and, Fig. 4, is a similar horizontal section on the line Y, Z, of Fig. l.

As shown in the drawings,'l represents the shell of the boiler;-2, the front flue sheet of the boiler,-3, the front end or smoke borg-4, the exhaust nozzle ;5, the two part, or divided dry pipe. The boiler contains a large number of small fire ihres, 6. and also four horizontal rows oi' enlarged fire lues, 7, 7, the pairs oi rows being preferably separated by one or more lrows of small flues. The enlarged flues accommodate and contain `the double return superhcating elements or loops, 8, 84 the ends 8 and S of which are first outwardly and then inwardly turned, and joined'in anchoring bars 9.

A and B represent the saturate and supcrheated steam headers. These headers occupy horizontal positions, and each of them comprises an elongated rectangular'member, composed of oneor more parts, and containing a steam passage, A B. The upper and lower parts 'of the headers occupy positions relatively -between respective pairs of enlarged ue rows. Thesaturate and superheated steam headers are arranged one in front of the ther, and the anchoring bars, 9, of the superheater elements are` bolted, or otherwise clampedupon the upper and lower sides ol the headers, to con- .nect respectivo ends of said elements therewith. The

particular form of the anchor blocks, and the manner of connecting the same to the headers is well illustrated in Fig, wherein the clamping bolts, 9, appear. The headers are separated by straight slots, or spaces, ltheir adjacent or abutting ends or edges being 1 nnllcl with the ue sheet of the boiler. Byreason of t ns construction theV superheater elements arc made uniform in length and other dimensions, from which fact it follows that said elements are interchangeable. Short legs, or

connections, 52 extend from the dry pipes, 5, 5, to the ends of the upper part oil the saturate steam header. To insure proper distribution of the steam to the many superheater elements l constrict the middle portion A 'of the header, making the openingor passage, smaller 1o theI engine steam chests through a Y, or divided' steam feed pipe, C. 13"I represents a bleeder pipe which is connected to the valve casing to maintain a minimum flow oi steam in the superheater at times when the throttle valve is closed.

The operation ol my novel superheater is as follows:

When the throttle valve B,is opened to free the pas; sage through the superheater steam Vwill low from the dry pipes into the horizontal,'rectangular' headers A, and filling both the upper and lower parts thereoll will pass into the numerous superheater elenrents or loops, 8. These being within the llues oi the boiler are heated to a high temperature, hence the steam is superheatcd. The superheated steam collected in the rectangular header B passes through the tee to the throttle valve casing and thence past the valve to the steam iced pipes and engine cylinder. L The advantages of this superheater arise from the division of the headers into two horizontal parts, each or' which parts being arranged between the rows ol enlarged ilues occupy very little ot the race ol' the flue sheet and leave the ilues and superheater elements exposed i'n such manner that the same may be readily inspected and cleaned. Furthermore, the employment of the two pairs of horizontal rows of enlarged lines, together with headers ol',corresponding` form, admits-oi the employment of the required number ol superheater elements, so that, although the headers occupy little space belore the flue sheet, the super-heater, nevertheless, isol` great capacity. The arrangement of the superheaters one in iront of the other between the rows o" enlarged fides, giving them the appearance o1' horizontal'plates, positions them in such manner that they oppose the least possible resistance to the liow ol gases in the smoke box, and are less apt to become loaded with cinders.

As various modifications oi' the particular su pcr'heatcr herein described will readily suggest themselves to one skilled in the art, l do not conliue my invent-ion to the specific constructions herein shown and described.

Having thus described my invention, l claim as new and desire to secure by Letters Patent: l

1. A. locomotive boiler' containing two horizontal rows ot' enlarged ues, in combination with superheater elements arranged in said nues, -saturate :rnd snperheated steam headers arranged edge to edge one in front of the other between said rows of ihres and connected to said elements,

y said headersvbeing respectively connected to the dry pipe of the boiler` and the steam feed pipe or pipes thereof, substantially as described.

2. A locomotive boiler' containing two pairs of horizontal rows of enlarged flues, in combination with horizon` tally disposed and-divided saturate and superheated steam headers having their upper andlower parts relatively between the dues of the upper and lower rows of lines respectively, suitable dry pipe and steam feed connections to said saturate and superheatcd steam headers respectively, and superheater elements arranged in said iiues and having their ends connected toadjncent `por-tions of respective headers, substantially as described.

3. A superheater for locomotive' boilers, comprising substantially rectangular' saturate :rnd superheated steam headers arranged edge to edge one in front ot' the other and provided with respective inlet a'nd outlet connections, in combination with parallel rows ot' superheater elements connected in pairs to opposite sides of respective portions of said headers, substantially as described. y 4. .A steam superheater, comprising substantially rect'angnlar loop-like, saturate and superheated steam headers arranged edge toedge one in front of the other ard respectively provided with inlet :rndl outlet connections. in combination with :l plurality ot superlwnler vlc-ments, the top aud bottom surfaces or' the upper :rnd the lower portions of said headers being' provided willi straight rows of holes whereto the ends ol' said elements are connected, substantially as described.

5. A steam super-heater comprising substantially rectangular horizontal loop like saturate and superheatcd steam headers arranged edge to edge, and respectively provided with inlet and outlet connections, in combination with four rows of superheater elements having' their ends connected with respective headers, the middle portions of saidheaders being constricted as and for the purpose specified.

(i. A locomotive boiler' provided with four horizontal rows or' enlarged tire lines, in combination with horizontally divided or loop like saturate andv superhcated steam headers. having their upper and lower parts arranged between the-rows of iiues and suitably connected, inlet connections for said saturate steam header, outlet connections for said superheated steam header', said headers beingr in sub4 stantial abutment upon a sing-le vertical plane, and super'- heater' elements arranged in said hues and having their ends connected with respective headers at points adjacent to said plane, substantially as described.

T. A` steam snperheater, comprising substantially rec tangular loop-like saturate and super-heated steam headers arranged edge to edge, in combination with suitable inlet connections for the said saturate` steam header', a. tee connected with said superheated steam header, and provided with a valve casing, a throttle valve provided in said casing', and a pluralityof superheatcr elements havingl outwardly and inwardly bentfcnds, detaclrably counecled to the sides ot'saiil superhcaiers, substantially :ls

described. l

S. A locomotive boiler' provided with four horizontal rows ot' ela1-gediireiiues in combination with horizonA tally divided or loop-like saturate and superheated steam headers having their upper and lower parts arranged between the rows of lines and suitably connected, :i dri/pipe connection for said saturate steam header, a tee provided :1t the top of said superhezlted stcnm header', a throttle valve arranged in the upper portion ot' said tee, and ay plu rality of super-heater elements arranged in said l'lues and having 'their'` ends connected with holes in respectively adjacent portions of said headers, substantially as described.

i). A. locomotive boiler having two rows oi' enlarged tirelilies, in combination with a saturate steam header arranged relatively between said rows of lire-fines, a like supcrhezlted steam header also arranged between said rows of lire-fines and between the iluc sheet and said vsaturate steam header', a throttle valve at the outlet of the superheatcd steam header, a plurality of super-healer loops or elements arranged lin said lire-ihres, and having'their ends connected with said headers, and said saturate and superheated steam headers being respectively connected with the boiler' dry-pipe and the steam feed pipe, substantially as described.

l0. A locomotive boiler having two rows of enlarged lire-fines, in combination with a saturate steam header arranged relatively bctween said rows of tire-nues, a like superheated steam header also arranged between said rows o1 fire-fines and between the tine sheet and said saturatc steam header, a throttle valve at the outlet of the supcrlreated steam header, a plurality of superhcater loops orelements arranged in said tire-lines, and having their ends connected with said headers, saidsaturate and superheatcd steam headers boing respectively connected with the boiler' dry-pipe und the steam feed pipe and a bleeder pipe leading from said superheated steam header, substantially as described.

11. A locomotive holler containing two rows of enlarged tire-ducs, in combination with. super-heater elements arranged in said nues, saturate and superheated steam headers arranged parallel with said rows of fines and relatlvelyietwccn them, menus connecting the ends of tiitl iungml i'vlnliwly lwlwtvu mill rows nl' uns mul vicini-nts, ui'crheatpi' elerunls to saliti hrzulms, l1 lllrotllv vnlvl mi l :mtl mvzms 'ulmvr'tinl: ill@ mlm-l mds il suini vlmmnln in trolling the How 0i Stimm from thv supcl'lmlvd hmm ummnlv smvA ,t will lmulvrs, subsimxtinlly :1x dvsi'riht-t. lmudti', 'ai blotdl-r pipe hauling 't1-0in .mld snpurhvnmld stveim in tnslinmny whvlimt, i lmvv liter-:imm sul my lmnd, Invader und menus connecting tlusal'm'zitv nlumn'ln-:ulmthis 17th in v nl' .mmh-try. i907. in the pi-orwm-e uf uw lbf with thp dryqripe 0I the holltr, substantially :is tlscrilwd. :subscribing n'imvrasts4 y v 12. A 'locnmotive Imi er "ontninlug two Vows n fnulzli'svtl fire-fines, in combination with :i plurality 0l minlnv l'vmrn su 'zrhattl' elements arrange@ lu smid films und nuving l@ curved ends, saturate nud Supa-hunted sto-am lmmlui' ui'- AX TOUR/ liliessvst M, Smm", A. W. NHLsuxA 

